What type of lens filter goes between the lens and body and has metal flakes in it?












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About 20 years ago when I was just starting out in photography, I was at a portrait photographer's studio. He was showing me some of his equipment. One thing that I found interesting was a set of square filters he used. They were made of solid glass, about 1/8" to 1/4" thick and appeared to have metal flakes at different depths in the glass. What was odd was that the filters were inserted between the lens and the camera body rather than being mounted to the front of the lens. If I recall correctly, they gave a glowy, softening effect that I've heard videographers refer to as the "Barbara Walters" effect.



What are these filters called? I've never seen anything similar since then, though I don't do much portrait photography.










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    About 20 years ago when I was just starting out in photography, I was at a portrait photographer's studio. He was showing me some of his equipment. One thing that I found interesting was a set of square filters he used. They were made of solid glass, about 1/8" to 1/4" thick and appeared to have metal flakes at different depths in the glass. What was odd was that the filters were inserted between the lens and the camera body rather than being mounted to the front of the lens. If I recall correctly, they gave a glowy, softening effect that I've heard videographers refer to as the "Barbara Walters" effect.



    What are these filters called? I've never seen anything similar since then, though I don't do much portrait photography.










    share|improve this question



























      3












      3








      3








      About 20 years ago when I was just starting out in photography, I was at a portrait photographer's studio. He was showing me some of his equipment. One thing that I found interesting was a set of square filters he used. They were made of solid glass, about 1/8" to 1/4" thick and appeared to have metal flakes at different depths in the glass. What was odd was that the filters were inserted between the lens and the camera body rather than being mounted to the front of the lens. If I recall correctly, they gave a glowy, softening effect that I've heard videographers refer to as the "Barbara Walters" effect.



      What are these filters called? I've never seen anything similar since then, though I don't do much portrait photography.










      share|improve this question
















      About 20 years ago when I was just starting out in photography, I was at a portrait photographer's studio. He was showing me some of his equipment. One thing that I found interesting was a set of square filters he used. They were made of solid glass, about 1/8" to 1/4" thick and appeared to have metal flakes at different depths in the glass. What was odd was that the filters were inserted between the lens and the camera body rather than being mounted to the front of the lens. If I recall correctly, they gave a glowy, softening effect that I've heard videographers refer to as the "Barbara Walters" effect.



      What are these filters called? I've never seen anything similar since then, though I don't do much portrait photography.







      portrait filters






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      share|improve this question













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      share|improve this question








      edited 4 hours ago







      user1118321

















      asked 5 hours ago









      user1118321user1118321

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          2 Answers
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          1














          You might be mixing up details from multiple items in this decades-old memory. Here are some possibilities, though none fit your description exactly:




          • There is a glimmerglass filter, which Tiffen describes as having 'a distinct silver 'sparkle'".


          • Some diffusion or soft-focus filters have a mesh within them that you might have thought were metal flakes.


          • Maybe it was a DIY filter with something sandwiched between two pieces of filter glass.


          • A teleconverter with multiple elements might appear to be thick glass and would fit between the lens and body. A poor-quality one could give images a "glow" or soft-focus look.







          share|improve this answer


























          • Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

            – user1118321
            1 hour ago











          • You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

            – xiota
            1 hour ago













          • As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

            – xiota
            1 hour ago





















          1














          Although not as common as they used to be, there are lenses made with gelatin filter holders on the back of the lens. Probably two of the most common ones still in current catalogs are Canon's EF 17-40mm f/4 L and EF 14mm f/2.8 L.



          enter image description here



          Most lenses with such filters are wider angle lenses that make it problematic to place a filter in front of the lens, due to either bulbous front elements or issues with vignetting due to the lens' wide angles of view.



          Going back even further, square glass filters behind the lens were much more common with large format view cameras than they are with smaller format cameras such as FF and smaller digital cameras. They were common enough that everyone familiar with large format cameras seems to know that inserting a glass filter behind the lens will alter the focus distance to the film by 1/3 the thickness of the filter. Thus the camera should always be focused after the filter is in place.






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            2 Answers
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            active

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            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1














            You might be mixing up details from multiple items in this decades-old memory. Here are some possibilities, though none fit your description exactly:




            • There is a glimmerglass filter, which Tiffen describes as having 'a distinct silver 'sparkle'".


            • Some diffusion or soft-focus filters have a mesh within them that you might have thought were metal flakes.


            • Maybe it was a DIY filter with something sandwiched between two pieces of filter glass.


            • A teleconverter with multiple elements might appear to be thick glass and would fit between the lens and body. A poor-quality one could give images a "glow" or soft-focus look.







            share|improve this answer


























            • Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

              – user1118321
              1 hour ago











            • You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

              – xiota
              1 hour ago













            • As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

              – xiota
              1 hour ago


















            1














            You might be mixing up details from multiple items in this decades-old memory. Here are some possibilities, though none fit your description exactly:




            • There is a glimmerglass filter, which Tiffen describes as having 'a distinct silver 'sparkle'".


            • Some diffusion or soft-focus filters have a mesh within them that you might have thought were metal flakes.


            • Maybe it was a DIY filter with something sandwiched between two pieces of filter glass.


            • A teleconverter with multiple elements might appear to be thick glass and would fit between the lens and body. A poor-quality one could give images a "glow" or soft-focus look.







            share|improve this answer


























            • Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

              – user1118321
              1 hour ago











            • You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

              – xiota
              1 hour ago













            • As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

              – xiota
              1 hour ago
















            1












            1








            1







            You might be mixing up details from multiple items in this decades-old memory. Here are some possibilities, though none fit your description exactly:




            • There is a glimmerglass filter, which Tiffen describes as having 'a distinct silver 'sparkle'".


            • Some diffusion or soft-focus filters have a mesh within them that you might have thought were metal flakes.


            • Maybe it was a DIY filter with something sandwiched between two pieces of filter glass.


            • A teleconverter with multiple elements might appear to be thick glass and would fit between the lens and body. A poor-quality one could give images a "glow" or soft-focus look.







            share|improve this answer















            You might be mixing up details from multiple items in this decades-old memory. Here are some possibilities, though none fit your description exactly:




            • There is a glimmerglass filter, which Tiffen describes as having 'a distinct silver 'sparkle'".


            • Some diffusion or soft-focus filters have a mesh within them that you might have thought were metal flakes.


            • Maybe it was a DIY filter with something sandwiched between two pieces of filter glass.


            • A teleconverter with multiple elements might appear to be thick glass and would fit between the lens and body. A poor-quality one could give images a "glow" or soft-focus look.








            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited 1 hour ago

























            answered 2 hours ago









            xiotaxiota

            9,64131653




            9,64131653













            • Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

              – user1118321
              1 hour ago











            • You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

              – xiota
              1 hour ago













            • As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

              – xiota
              1 hour ago





















            • Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

              – user1118321
              1 hour ago











            • You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

              – xiota
              1 hour ago













            • As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

              – xiota
              1 hour ago



















            Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

            – user1118321
            1 hour ago





            Thanks! My memory is definitely not great. The glimmerglass and smoque filters look like the effect that was produced. The filter was definitely not a teleconverter, though, as I had him scan one with a flatbed scanner and give me the resulting image file. (Alas, I no longer have the file.) But this is definitely in the right direction. Thank you! If it helps, I'm pretty sure they were rectangular and not round. The DIY aspect is an interesting thought. I don't think he made them himself, but it's possible.

            – user1118321
            1 hour ago













            You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

            – xiota
            1 hour ago







            You can try fogging the front element of your lens by breathing on it to see if that produces an effect you like. In principle, it should be solute-free and evaporate away harmlessly, as long as nothing touches it first.

            – xiota
            1 hour ago















            As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

            – xiota
            1 hour ago







            As far as I'm aware, most square/rectangular filters go in front of the lens in a holder. Some lenses are designed to take filters behind the rear element, but the ones I've seen are round. Thick glass would also be expected to affect focusing. So the lens and filter would have to be designed to work together.

            – xiota
            1 hour ago















            1














            Although not as common as they used to be, there are lenses made with gelatin filter holders on the back of the lens. Probably two of the most common ones still in current catalogs are Canon's EF 17-40mm f/4 L and EF 14mm f/2.8 L.



            enter image description here



            Most lenses with such filters are wider angle lenses that make it problematic to place a filter in front of the lens, due to either bulbous front elements or issues with vignetting due to the lens' wide angles of view.



            Going back even further, square glass filters behind the lens were much more common with large format view cameras than they are with smaller format cameras such as FF and smaller digital cameras. They were common enough that everyone familiar with large format cameras seems to know that inserting a glass filter behind the lens will alter the focus distance to the film by 1/3 the thickness of the filter. Thus the camera should always be focused after the filter is in place.






            share|improve this answer




























              1














              Although not as common as they used to be, there are lenses made with gelatin filter holders on the back of the lens. Probably two of the most common ones still in current catalogs are Canon's EF 17-40mm f/4 L and EF 14mm f/2.8 L.



              enter image description here



              Most lenses with such filters are wider angle lenses that make it problematic to place a filter in front of the lens, due to either bulbous front elements or issues with vignetting due to the lens' wide angles of view.



              Going back even further, square glass filters behind the lens were much more common with large format view cameras than they are with smaller format cameras such as FF and smaller digital cameras. They were common enough that everyone familiar with large format cameras seems to know that inserting a glass filter behind the lens will alter the focus distance to the film by 1/3 the thickness of the filter. Thus the camera should always be focused after the filter is in place.






              share|improve this answer


























                1












                1








                1







                Although not as common as they used to be, there are lenses made with gelatin filter holders on the back of the lens. Probably two of the most common ones still in current catalogs are Canon's EF 17-40mm f/4 L and EF 14mm f/2.8 L.



                enter image description here



                Most lenses with such filters are wider angle lenses that make it problematic to place a filter in front of the lens, due to either bulbous front elements or issues with vignetting due to the lens' wide angles of view.



                Going back even further, square glass filters behind the lens were much more common with large format view cameras than they are with smaller format cameras such as FF and smaller digital cameras. They were common enough that everyone familiar with large format cameras seems to know that inserting a glass filter behind the lens will alter the focus distance to the film by 1/3 the thickness of the filter. Thus the camera should always be focused after the filter is in place.






                share|improve this answer













                Although not as common as they used to be, there are lenses made with gelatin filter holders on the back of the lens. Probably two of the most common ones still in current catalogs are Canon's EF 17-40mm f/4 L and EF 14mm f/2.8 L.



                enter image description here



                Most lenses with such filters are wider angle lenses that make it problematic to place a filter in front of the lens, due to either bulbous front elements or issues with vignetting due to the lens' wide angles of view.



                Going back even further, square glass filters behind the lens were much more common with large format view cameras than they are with smaller format cameras such as FF and smaller digital cameras. They were common enough that everyone familiar with large format cameras seems to know that inserting a glass filter behind the lens will alter the focus distance to the film by 1/3 the thickness of the filter. Thus the camera should always be focused after the filter is in place.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 27 mins ago









                Michael CMichael C

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                131k7149368






























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